阅读说明：本技术 一种洁净蒸汽系统及应用的渔船 (Clean steam system and fishing boat applying same ) 是由 陈浩 王万勇 王志 于 2019-11-26 设计创作，主要内容包括：本发明公开一种洁净蒸汽系统及应用的渔船,涉及蒸汽发生器技术领域。本发明的洁净蒸汽系统包括：水处理单元；第一热交换单元,其与所述水处理单元连通；第二热交换单元,其与所述第一热交换单元连通；排污单元,其与所述第二热交换单元连通。本发明解决了现有的渔船现场加工过程中蒸汽中存在潜在污染风险且会导致额外消耗大量的化学药品的问题。(The invention discloses a clean steam system and a fishing boat applying the same, and relates to the technical field of steam generators. The clean steam system of the present invention comprises: a water treatment unit; a first heat exchange unit in communication with the water treatment unit; a second heat exchange unit in communication with the first heat exchange unit; a blowdown unit in communication with the second heat exchange unit. The invention solves the problems that potential pollution risks exist in steam in the field processing process of the existing fishing boat and a large amount of chemicals are additionally consumed.)

1. A clean steam system, comprising:

a water treatment unit;

a first heat exchange unit in communication with the water treatment unit;

a second heat exchange unit in communication with the first heat exchange unit;

a blowdown unit in communication with the second heat exchange unit.

2. The clean steam system of claim 1, wherein the inlet of the second heat exchange unit is in communication with the outlet of the first heat exchange unit, and the outlet of the second heat exchange unit is in communication with the inlet of the first heat exchange unit.

3. The clean steam system as claimed in claim 1, further comprising a first bypass line, wherein two ends of the first bypass line are respectively communicated with the water treatment unit and the first heat exchange unit.

4. The clean steam system of claim 1, further comprising a second bypass line, one end of which is in communication with the second heat exchange unit.

5. The clean steam system of claim 1, further comprising a third bypass line in communication with the first heat exchange unit and the second heat exchange unit.

6. The clean steam system of claim 1, further comprising a pressure sensor disposed on the second heat exchange unit.

7. The clean steam system of claim 1, further comprising a fourth bypass line, the fourth bypass line being in communication with the second heat exchange unit.

8. The clean steam system of claim 1, further comprising a fifth bypass line, the fifth bypass line being in communication with the first heat exchange unit.

9. A clean steam system as claimed in claim 1, wherein the sewerage unit includes a water quality detector for detecting the quality of the water discharged from the second heat exchange unit.

10. A fishing boat, characterized in that it comprises

A hull;

a marine steam system disposed on the hull;

a clean steam system disposed on the hull and connected to the marine steam system; the clean steam system includes:

a water treatment unit;

a first heat exchange unit in communication with the water treatment unit;

a second heat exchange unit in communication with the first heat exchange unit;

a blowdown unit in communication with the second heat exchange unit; a processing line coupled to the clean steam system.

Technical Field

The invention belongs to the technical field of steam generators, and particularly relates to a clean steam system and a fishing boat applying the same.

Background

Some aquatic products on the fishing boat need directly be processed on the fishing boat, need use steam and aquatic products to carry out the heat exchange in the in-process of processing usually to reach the purpose of heating, for example, have a set of processing lines that will catch the krill on the antarctic krill ship and directly process into the shrimp meal, at the initial heating stage of this production line, in order to avoid the albumen in the krill to separate out the coagulation inside the production line, need improve the temperature of krill in the short time fast, can directly spout steam into heater and krill at this moment and carry out the hybrid heating. In the process of heating the aquatic products, steam is in direct contact with the aquatic products, so that once the steam contains impurities or other substances, the quality of the products is affected, and the quality and normal sale of the finished aquatic products are affected. In addition, fishing boats for fishing in severe environment have great requirements on recycling of materials and energy due to the fact that material storage, supply and pollution discharge are greatly limited.

Disclosure of Invention

The invention aims to provide a clean steam system and a fishing boat applying the same, wherein the clean steam system generates fresh steam through secondary heat exchange, so that the problems of potential pollution risk and excessive consumption of a large amount of chemicals in the existing steam are solved, and meanwhile, the use of materials and energy in the whole system adopts a circulating mode, so that the utilization rate of the materials and the energy is greatly improved, and the clean steam system is suitable for the long-term fishing operation requirement of the ocean fishing boat under severe conditions.

In order to solve the technical problems, the invention is realized by the following technical scheme:

the invention is a clean steam system, comprising:

a water treatment unit;

a first heat exchange unit in communication with the water treatment unit;

a second heat exchange unit in communication with the first heat exchange unit;

a blowdown unit in communication with the second heat exchange unit.

In one embodiment of the invention, the inlet of the second heat exchange unit is in communication with the outlet of the first heat exchange unit and the outlet of the second heat exchange unit is in communication with the inlet of the first heat exchange unit.

In one embodiment of the present invention, the clean steam system further includes a first bypass line, and both ends of the first bypass line are respectively communicated with the water treatment unit and the first heat exchange unit.

In one embodiment of the present invention, the clean steam system further includes a second bypass line, one end of which communicates with the second heat exchange unit.

In one embodiment of the present invention, the clean steam system further includes a third bypass line communicating with the first heat exchange unit and the second heat exchange unit.

In one embodiment of the present invention, the clean steam system further includes a pressure sensor disposed on the second heat exchange unit.

In one embodiment of the present invention, the clean steam system further includes a fourth bypass line, the fourth bypass line being in communication with the second heat exchange unit.

In one embodiment of the present invention, the clean steam system further includes a fifth bypass line, the fifth bypass line being in communication with the first heat exchange unit.

In one embodiment of the present invention, the soil discharging unit includes a water quality detector for detecting a water quality of the water discharged from the second heat exchanging unit.

In one embodiment of the present invention, the clean steam system further includes a safety valve provided on the second heat exchange unit.

The present invention also provides a fishing boat, comprising:

a hull;

a marine steam system disposed on the hull;

a clean steam system disposed on the hull and connected to the marine steam system; the clean steam system includes:

a water treatment unit;

a first heat exchange unit in communication with the water treatment unit;

a second heat exchange unit in communication with the first heat exchange unit;

a blowdown unit in communication with the second heat exchange unit;

a processing line coupled to the clean steam system.

The invention effectively solves the source problem of clean steam required by directly processing aquatic products on the fishing boat, effectively ensures the quality of aquatic products from various angles, eliminates the risk of chemical pollution of water treatment, simultaneously controls the energy consumption to a certain extent, has small influence on a marine steam system, and can be widely applied to new shipbuilding and ship reconstruction.

Of course, it is not necessary for any product in which the invention is practiced to achieve all of the above-described advantages at the same time.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to the drawings without creative efforts.

FIG. 1 is a schematic view of a fishing boat according to the present invention;

FIG. 2 is a schematic diagram of an embodiment of the clean steam system of FIG. 1;

FIG. 3 is a schematic view of another embodiment of the clean steam system of FIG. 1;

fig. 4 is a schematic diagram of a connection structure of the control system in fig. 2.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1 to 4, the present invention is a fishing boat comprising: hull 001, marine steam system 002, clean steam system 003 and processing lines 004, wherein marine steam system 002 installs on hull 001, and clean steam system 003 is connected with marine steam system 002, and processing lines 004 and clean steam system 003 are connected.

Referring to fig. 1 to 4, the present invention also provides a clean steam system 003, including: a water treatment unit 100, a first heat exchange unit 300, a second heat exchange unit 500, a sewage discharge unit 900, and a control system 1100.

Referring to fig. 1 to 4, the water treatment unit 100 is disposed on the hull 001, and the water treatment unit 100 includes a booster pump 101, a first filter 102, a second filter 103, a reverse osmosis membrane module 104, a water collection tank 105, and a water supply pump 107, wherein the booster pump 101, the first filter 102, the second filter 103, the reverse osmosis membrane module 104, the water collection tank 105, and the water supply pump 107 are connected in sequence. The seawater enters the first filter 102 through the booster pump 101, the first filter 102 may be a multi-media filter, and the multi-media filter may include one or more filter media layers, and if a plurality of filter media layers are adopted, the plurality of filter media layers are sequentially stacked from top to bottom according to the density, and the seawater with higher turbidity passes through the filter media layers under a certain pressure, so as to effectively remove suspended impurities and clarify the water, and the filter material adopted by the filter media layers includes, for example, quartz sand, anthracite, or activated carbon, and after the multi-media filter is processed, suspended or colloidal impurities in the seawater are removed, and meanwhile, some micro particles, bacteria and the like in the seawater can also be removed. After the coarse filtration in the first filter 102, the seawater continues to enter the second filter 103, and the second filter 103 is, for example, a precision filter having a structure similar to that of the multi-media filter except that a filter medium is used, and the filter medium used in the precision filter includes, for example, sintered corundum, sintered plastic, or sintered metallic titanium, which has a density much lower than that of the filter medium in the multi-media filter. The fine particles in the seawater are further removed by further filtering through the second filter 103, and clarified seawater is obtained. The obtained clarified seawater is sent to a reverse osmosis membrane module 104, and the reverse osmosis membrane module 104 is, for example, an RO reverse osmosis membrane, and by applying pressure to the seawater side of the RO reverse osmosis membrane, when the pressure exceeds its osmotic pressure, the seawater is reverse-permeated against the direction of natural osmosis. Since the pore diameter of the RO reverse osmosis membrane is one million (0.0001 μm) of hair, water molecules in the sea water can pass through the RO reverse osmosis membrane, and impurities such as inorganic salts, heavy metal ions, organic matters, colloids, bacteria, viruses and the like in the sea water cannot pass through the RO reverse osmosis membrane, so that the permeated pure fresh water is obtained on the low-pressure side of the RO reverse osmosis membrane, and the intercepted high-concentration salt water is obtained on the high-pressure side of the RO reverse osmosis membrane. The pure fresh water enters the water collection tank 105 for storage, and enters the subsequent first pipeline 201 after being pressurized by the water supply pump 107.

In other embodiments, the water treatment unit 100 further includes a backup water supply pump 108, and the backup water supply pump 108 may be activated to pressurize the pure fresh water when the water supply pump 107 fails.

Referring to fig. 1 to 4, the first heat exchange unit 300 is communicated with the water collecting tank 105 through a first pipeline 201, a first water valve 202 is disposed on the first pipeline 201, and the first water valve 202 controls on/off of the first pipeline 201. The energy source of the first heat exchange unit 300 can be heated by a heating component of the structure itself, or can be externally provided with hot steam as a heat source, for example, the marine steam system 002 is adopted to provide the heat source in the embodiment. In other embodiments, a heating assembly inside the first heat exchange unit 300 may also be employed as a heat source. The first heat exchange unit 300 may include, for example, a first heat exchange tube body 301, a temperature controller 302, and a first heating assembly 303. Wherein the first heating element 303 and the temperature controller 302 are installed in the first heat exchange tube body 301, and the first water valve 202 is disposed on the first pipe 201 to control the amount of water entering the first heat exchange unit 300. When the temperature controller 302 detects that the temperature of the water entering the first heat exchanging tube body 301 is lower than a preset value, the control system 1100 controls to start the first heating element 303 to heat the water inside the first heat exchanging tube body 301, and when the temperature controller 302 detects that the temperature of the water inside the first heat exchanging tube body 301 reaches the preset value, the control system 1100 controls to close the first heating element 303, so as to ensure that the temperature of the water inside the first heat exchanging tube body 301 is within a set range. The preheated water in the first heat exchange unit 300 enters the second heat exchange unit 500 through the second pipeline 401, and the water vapor used for heat exchange in the first heat exchange unit 300 can also be discharged out of the system through a drain pipe.

Referring to fig. 1 to 4, the first inlet 506 of the second heat exchange unit 500 is connected to the outlet of the first heat exchange unit 300 through the second pipeline 401, the first outlet 507 of the second heat exchange unit 500 is connected to the heating inlet of the first heat exchange unit 300 through the third pipeline 601, and the third pipeline 601 is provided with a third trap 602. The second heat exchange unit 500 may be, for example, an evaporator, the evaporator includes a second heat exchange tube 501 and a second heating assembly 502, the second heating assembly 502 is disposed in the heating chamber, the second heating assembly 502 further heats the preheated water entering the second heat exchange tube 501, so that the water is evaporated, that is, clean steam is obtained, one end of the second heating assembly 502 is communicated with the first outlet 507, the other end of the second heating assembly 502 is communicated with the second inlet 508, the obtained clean steam is conveyed to the processing line 004 through the second outlet 509, the clean steam obtained in this embodiment is used to heat, for example, krill in the processing line of the shrimp meal, the clean steam obtained by the second heat exchange unit 500 continuously enters, for example, the processing line of the shrimp meal, and rapidly heats the krill, thereby effectively avoiding the precipitation of protein of the krill, and at the same time, because the content of impurities in the clean steam is extremely low, therefore, the quality of the shrimp meal is effectively ensured. The high-temperature condensed water obtained in the heat exchange process plays a role of heating a heat source for the water in the first heat exchange unit 300, and the energy consumption in the system can be further reduced.

Referring to fig. 1 to 4, one end of the marine steam system 002 is connected to the second inlet 508 of the second heat exchange unit 500 via a fourth pipeline 801, and the marine steam system 002 is connected to the first heat exchange unit 300 via a fifth pipeline 1001, wherein the fourth pipeline 801 and the fifth pipeline 1001 are respectively provided with a fourth air valve 802 and a fifth drain valve 1002. The marine steam passing through the marine steam system 002 may be input into the second heat exchange unit 500 through the fourth pipeline 801 via the second inlet 508, and after heat is released by the second heat exchange unit 500, the generated high-temperature condensed water enters the first heat exchange unit 300 to be used as a heat source.

Referring to fig. 1 to 4, in addition, the clean steam system 003 of the present invention further includes a blowdown unit 900, for example, the blowdown unit 900 may be disposed at the bottom of the second heat exchange unit 500 and communicated with the third outlet 510 of the second heat exchange unit 500, and the blowdown unit 900 includes a water quality detector 901, a drain remote control valve 902 and a cooling sampler 903. A water quality detector 901, a drain remote control valve 902 and a cooling sampler 903 are installed on a drain line communicating with the second heat exchange unit 500. The water quality detector 901 can continuously monitor the water quality of the water inside the second heat exchange unit 500 in real time, and simultaneously feed back the water quality information to the control system 1100. The bleed remote control valve 902 can be automatically adjusted to open and close by the control system 1100 according to the water quality TDS value fed back by the water quality detector 901, when the TDS exceeds a set value, the bleed remote control valve 902 is automatically opened, high-temperature water is discharged, the high-temperature water passing through the bleed remote control valve 902 is directly bled to below an outboard waterline, and when the TDS is smaller than the set value, the bleed remote control valve 902 is automatically closed. The stop valve before the cooling sampler 903 is opened, the high-temperature water inside the second heat exchange unit 500 can be discharged, and after being cooled by the cooling sampler 903, the cooled sampling water can be tested.

Referring to fig. 1 to 4, in another embodiment, the clean steam system 003 further includes a first bypass line 203, two ends of the first bypass line 203 are respectively connected to the outlet of the water treatment unit 100 and the first heat exchange unit 300, when the first line 201 stops working due to a fault, the first bypass line 203 is manually opened, and the water treated by the water treatment unit 100 flows to the first heat exchange unit 300 through the first bypass line 203.

Referring to fig. 1 to 4, in another embodiment, the clean steam system 003 may further include a second bypass 403, one end of the second bypass 403 is communicated with the first 201 and the first 203, and the other end of the second bypass 403 is communicated with the second heat exchange unit 500, when the first heat exchange unit 300 stops working due to a fault, the second bypass 403 is manually opened, and the water treated by the water treatment unit 100 directly flows to the second heat exchange unit 500 through the second bypass 403.

Referring to fig. 1 to 4, in another embodiment, the clean steam system 003 further includes a backflow valve 204, the backflow valve 204 is connected in parallel with the first pipeline 201 and the first bypass pipeline 203, and when the first pipeline 201 and the first bypass pipeline 203 are closed, the backflow valve 204 is opened to input the excess clean fresh water into the water collection tank 105 for storage.

Referring to fig. 1 to 4, in another embodiment, the clean steam system 003 may further include a third bypass 603, one end of the third bypass 603 is communicated with the second heat exchange unit 500, and the other end of the third bypass 603 is communicated with the first heat exchange unit 300, when the third pipeline 601 stops working due to a fault, the third bypass 603 is manually opened, and the steam after heat release through the second heat exchange unit 500 enters the first heat exchange unit 300 through the third bypass 603 to act as a heat source for heating the water in the first heat exchange unit 300, so as to further reduce energy consumption in the system.

Referring to fig. 1 to 4, in another embodiment, the clean steam system 003 may further include a fourth bypass pipeline 803, one end of the fourth bypass pipeline 803 is communicated with the marine steam system 002, and the other end of the fourth bypass pipeline 803 is communicated with the second heat exchange unit 500, when the fourth pipeline 801 stops working due to a fault, the fourth bypass pipeline 803 is manually opened, and the steam in the marine steam system 002 may be input into the second heat exchange unit 500 through the fourth bypass pipeline 803.

Referring to fig. 1 to 4, in another embodiment, the clean steam system 003 further includes a fifth bypass line 1003, one end of the fifth bypass line 1003 is communicated with the marine steam system 002, and the other end of the fifth bypass line 1003 is communicated with the first heat exchange unit 300, when the fifth line 1001 stops working due to a fault, the fifth bypass line 1003 is manually opened, and steam in the marine steam system 002 can enter the first heat exchange unit 300 through the fifth bypass line 1003, so as to heat water in the first heat exchange unit 300.

Referring to fig. 1 to 4, in other embodiments, the clean steam system 003 can further include a pressure sensor 503, the pressure sensor 503 is disposed on the second heat exchange unit 500 for monitoring a pressure value of clean steam generated in the second heat exchange unit 500, the pressure sensor 503 is connected to the control system 1100, the control system 1100 controls the on/off of the fourth air valve 802 on the fourth pipeline 801 according to the clean steam pressure value monitored by the pressure sensor 503, when the pressure sensor 503 detects that the pressure value inside the second heat exchange unit 500 exceeds the preset pressure value, the control system 1100 controls the fourth valve 802 on the fourth line 801 to close or decrease in opening, and vice versa, when the pressure sensor 503 detects that the pressure value in the second heat exchange unit 500 is less than or equal to the preset pressure value, the control system 1100 controls the fourth valve 802 on the fourth line 801 to open or increase in opening.

Referring to fig. 1 to 4, in another embodiment, the clean steam system 003 may further include a safety valve 504 disposed at the top of the second heat exchange unit 500, and when the pressure of the clean steam generated in the second heat exchange unit 500 exceeds a predetermined pressure, the safety valve 504 is opened to release the pressure, thereby ensuring the safety of the system.

Referring to fig. 1 to 4, in other embodiments, the clean steam system 003 may further include a liquid level meter 505 disposed outside the second heat exchange unit 500, the liquid level meter 505 is connected to the control system 1100, and the control system 1100 controls the opening degree of the first water valve 202 on the first pipeline 201 according to a liquid level value monitored by the liquid level meter 505.

Referring to fig. 1 to 4, in another embodiment, the water treatment unit 100 further includes a backup booster pump 106, and the backup booster pump 106 is connected in parallel with the booster pump 101, and the backup booster pump 106 is activated when the booster pump 101 fails.

Referring to fig. 1 to 4, a control system 1100 of the present invention is used to control the opening degrees of the first water valve 202, the fourth air valve 802, and the drain remote control valve 902 and the start and stop of the water supply pump 107 and the standby water supply pump 108, wherein the first water valve 202, the fourth air valve 802, and the drain remote control valve 902 use external compressed air as an actuator driving source. The control system 1100 can set and control the pressure, level, TDS values. The control system 1100 may receive the pressure information from the pressure sensor 503, process the information and feed the processed information back to the fourth gas valve 802, and dynamically adjust the supply amount of the external marine steam through the opening degree of the fourth gas valve 802. The control system 1100 may receive the liquid level information from the liquid level meter 505, process the information and feed the processed information back to the first water valve 202, and dynamically adjust the supply amount of the external fresh water by the opening degree of the first water valve 202. The control system 1100 receives the water TDS information from the water quality detector 901, processes the information and feeds the processed information back to the discharge remote control valve 902, and dynamically adjusts the discharge amount of the overproof water in the system by opening and closing the discharge remote control valve 902. The control system 1100 may also directly control the start and stop of the water supply pump 107 and the backup water supply pump 108 after receiving the liquid level information from the liquid level meter 505.

Referring to fig. 1 to 4, the working process of the clean steam system 003 of the present invention is as follows:

referring to fig. 1 to 4, the booster pump 101 or the backup booster pump 106 inputs seawater into the first filter 102 and the second filter 103, and the seawater is filtered by the first filter 102 and the second filter 103 to obtain clarified seawater, and then the clarified seawater is input into the reverse osmosis membrane module 104, and through the reverse osmosis of the reverse osmosis membrane module 104, impurities such as inorganic salts, heavy metal ions, organic matters, colloids, bacteria, viruses, and the like in the seawater are intercepted, and pure fresh water is obtained and stored in 105.

Referring to fig. 1 to 4, the water supply pump 107 pumps pure fresh water from the water tank 105, the pure fresh water is input into the first heat exchange unit 300 through the first pipeline 201 or the first bypass pipeline 203, the pure fresh water is preheated in the first heat exchange unit 300, the preheated fresh water is input into the second heat exchange unit 500 through the second pipeline 401 or the second bypass pipeline 403, the fresh water is evaporated in the second heat exchange unit 500, dry clean steam is obtained, and the obtained clean steam is provided to the processing line 004 for use.

Referring to fig. 1 to 4, more specifically, the marine steam system 002 is used as a heating source, and the steam in the marine steam system 002 enters the clean steam system 003 and then flows to the second heat exchange unit 500 and the first heat exchange unit 300 under the control of a valve. The pure fresh water processed by the water processing unit 100 enters the first heat exchange unit 300 and is preheated by the high-temperature condensed water/steam in the marine steam system 002, and then enters the second heat exchange unit 500, and clean steam is generated after heating, and the dry clean steam is supplied to the processing production line 004 for use. The second outlet 509 at the top of the second heat exchange unit 500 is opened so that the clean steam can be discharged from the second heat exchange unit 500, facilitating the speed of supplying the pure fresh water. The liquid level gauge 505 at the side of the second heat exchange unit 500 observes the liquid level change inside the second heat exchange unit 500, and the liquid level gauge 505 can simultaneously feed back the liquid level information to the control system 1100. A backup water supply pump 108 and a return valve 204 are provided in parallel with the water supply pump 107, the backup water supply pump 108 being activated when the water supply pump 107 fails, the return valve 204 serving to balance the water pressure in the lines before and after the pump.

The steam in the marine steam system 002 may also directly flow to the second heat exchange unit 500, the steam flows through the fourth air valve 802, the opening of the fourth air valve 802 may be automatically adjusted by the control system 1100 according to a pressure value fed back by the pressure sensor 503, when the fourth air valve 802 fails, the fourth bypass pipeline 803 may be manually opened to supply steam, when the pressure sensor 503 does not reach a set pressure, the fourth air valve 802 may be automatically adjusted to the maximum opening to ensure that the steam amount passing through the fourth air valve 802 is maximum, and when the pressure sensor 503 reaches the set pressure, the fourth air valve 802 may be automatically closed or reduced in opening.

Referring to fig. 1 to 4, after the steam completes the heating process of the pure fresh water from the second heat exchange unit 500, the steam is discharged together with the high-temperature condensed water generated in the second heat exchange unit 500 through the third pipeline 601, and flows through the third trap 602, the third trap 602 functions to discharge and block steam, the high-temperature condensed water passing through the third trap 602 enters the first heat exchange unit 300 to indirectly preheat the pure fresh water in the first heat exchange unit 300, and when the third trap 600 fails, the third bypass pipeline 603 can be manually opened to discharge steam and condensed water. The other path flows to a fifth steam trap 1002 and enters the first heat exchange unit 300, when the preheating quantity of the system is insufficient, the fifth pipeline 1001 can be manually opened to directly provide high-temperature condensed water to the first heat exchange unit 300, and when the fifth steam trap 1002 fails, the fifth bypass pipeline 1003 can be manually opened to provide steam.

Referring to fig. 1 to 4, a stop valve is provided at each of the second heat exchange unit 500, such as the bottom lowest point and the bottom of the liquid level meter 505 pipeline, for discharging the sewage in the second heat exchange unit 500 and the liquid level meter 505 pipeline in case of shutdown safety, so as to avoid polluting the system. The safety valve 504 at the top of the second heat exchange unit 500 is used to prevent the internal system pressure from exceeding a set value, when the safety valve 504 is opened, the internal high-temperature steam-water mixture is discharged, the steam is connected to an outdoor safety position, and the high-temperature condensed water is directly discharged below the outboard waterline. The water quality detector 901 on the bottom blowdown unit 900 pipeline of the second heat exchange unit 500 can continuously monitor the TDS of the internal fresh water in real time, and simultaneously feed back the TDS information to the control system 1100, and the internal fresh water can be controlled by the valve elements to flow to the drain remote control valve 902 and the cooling sampler 903. Wherein flow direction to the remote control valve 902 that drains all the way, the remote control valve 902 that drains can be adjusted the switching state automatically by control system 1100 according to the TDS value of water quality detector 901 feedback, when TDS surpassed the setting value, will open the remote control valve 902 that drains on the external pipeline automatically, when TDS was less than the setting value, will close the remote control valve 902 that drains on the external pipeline automatically, high temperature water through the remote control valve 902 that drains directly outside the hull 001. Wherein another way flows to cooling sampler 903, opens the stop valve before cooling sampler 903, and the inside high temperature water of second heat exchange unit 500 can be discharged, after cooling sampler 903 cooling, can carry out the chemical examination to the sample water after having cooled.

Referring to fig. 1 to 4, the compressed air enters the clean steam system 003 and is connected to the first water valve 202, the fourth air valve 802 and the release remote control valve 902 in the clean steam system 003 as actuator driving sources of the three remote control valves, respectively.

Referring to fig. 1 to 4, all materials contacting fresh water and clean steam are made of stainless steel 316L, and all equipment, pipelines and valve accessories above 60 ℃ are insulated and coated, so as to avoid injury to personnel.

In the description herein, references to the description of "one embodiment," "an example," "a specific example" or the like are intended to mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

The preferred embodiments of the invention disclosed above are intended to be illustrative only. The preferred embodiments are not intended to be exhaustive or to limit the invention to the precise embodiments disclosed. Obviously, many modifications and variations are possible in light of the above teaching. The embodiments were chosen and described in order to best explain the principles of the invention and the practical application, to thereby enable others skilled in the art to best utilize the invention. The invention is limited only by the claims and their full scope and equivalents.